How To Back Up Thunderbird Emails

How Do I Back Up Mozilla Thunderbird Emails?

Backing up Thunderbird Emails is simple with SyncBackSE/Pro. Before we jump in and explain this process, there is one important consideration we would like to tell you about.

You can back up Thunderbird  to  the same backup destination every run, but watch out! If you manage to trash your Thunderbird mail completely, then the next time you start Thunderbird it will automatically create new standard folders (Drafts, Inbox, Sent, Templates and Trash). If your backup schedule kicks in after that, but before you restore the good data, then it will backup the new Thunderbird folders to your Thunderbird destination. 

That will destroy the last backup of those folders but other email folders should still survive (see below **).

This might not be very likely, but backup is about eliminating risk of data loss, so here’s what to do. (You should look up the use of Variables in the help documentation to clarify the following.)

1) Create a separate profile for Thunderbird with the source being something like:


and a destination similar to:


(of course you would use your destination drive letter, or use the %LABEL=% variable.)

2) Under the Advanced tab, section What to do if file is in the destination but not in the source, select Do nothing.  DO NOT select Delete file from destination, or SyncBack will delete the good folders because they no longer exist in Thunderbird.

The profile tells SyncBack to do the backup into folder “backup“, and sub-folder named Mon, Tues, etc, depending on the day of week, and sub-sub-folder “Thunderbird“. So, all your Thunderbird backups (on Friday, for example) would go into a folder named “backup\FRI\Thunderbird“.    Now you have a daily backup for each of the last 7 days.

Of course, SyncBack is smart enough to know that, even though it is using a different folder, it is all part of the same backup scheme, and so SyncBack only backs up files that have changed. So, if some of your Thunderbird email folders don’t change one day, those folders don’t get backed up.  That cuts down on the backup size and time.

Because of that, if you need to restore the email folders, first shut down Thunderbird. Then you will need to go through each of the seven daily backup folders, recovering the most recent email files. You can start with the oldest and copy all the Thunderbird files from the backup to the source. Then the next oldest, etc. When you’ve finished, you will have the most recent of each email folder. When you restart Thunderbird, everything should be in place.

By the way... use that %DAYOFWEEKNAME% idea for all the data folders where you want to retain some history. That way, you will always be able to go back to your last good copy of something.

Frequently Asked Questions

  1. Support Policy
  2. Terms and Conditions
  3. Receiving e-Mail Responses From 2BrightSparks
  4. Viewing our website in another language
  5. The Latest Version Numbers & Updates
  6. 2BrightSparks Freeware
  7. Difference between Backup and Sync
  8. My serial number does not work
  9. Uninstalling and Removing SyncBack
  10. SyncBackFree-Lite-SE-Pro are different programs
  11. How to Backup Profiles
  12. Problems downloading software
  13. Problems Downloading Files
  14. Technical Support by Email
  15. Renaming a profile
  16. Copying open and locked files with SyncBackLite/SE/Pro
  17. How to capture a screenshot of your computer
  18. Software reported as security risk
  19. Linux, UNIX, or Mac Operating System Support
  20. Running SyncBackSE and SyncBackPro on a Mac
  21. Cookies and JavaScript at 2BrightSparks
  22. Receiving the 2BrightSparks Forum RSS Feed
  23. Disk Imaging Software
  24. Download the latest version of the software
  25. SyncBack System Requirements
  26. How To Back Up Thunderbird Emails
  27. Running profiles periodically in the background
  28. SyncBackPro/SE/Lite/Free simultaneous installations
  29. Forcing SyncBack to display in English
  30. The Differences window appears as top window
  31. No answer to my email
  32. Non-Reversable Deletion with DeleteOnClick
  33. Evaluating OnClick Utilities
  34. Validating Serial Numbers
  35. Searching the 2BrightSparks Site
  36. How to install SyncBack
  37. Explain the trial versions
  38. Redistributing Software
  39. Sending 2BrightSparks Attachments
  40. How to deal with Spam emails
  41. My anti-virus software says your software contains a virus
  42. SyncBack Touch and the SyncBack Management Service (SBMS)
  43. Example uses for SyncBack Touch
  44. Unsubscribe from mailing lists

Feedback and Knowledge Base